Compacting flour in bags



April 22, 1947. y H. ANDERSON 2,419,330

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- UNITED STATE P'ArizNr orFicE COMPACTING FLOUR IN BAGS "I I HelmerAnderson, Minneapolis, Minn., assignorto General Mills, Inc., acorporation of Delaware Application May 13,1943, serial No. 4a6,91s

- ,y 17 Claims.

1 I'his invention relates to shaping of filled bags and at the same timetoyr compacting or settling flour or other powdered or granular materialin bags, particularly paper bags.

Heretoi'ore, the common way of doing this has been to run the lledbagsover a jogging table y having a conveyor means for feeding thebagsforward while. they are shaken up and down. Due to the pounding frombeneath, the bag often buckles and develops wrinkles in its'sides whichi is sloppy in appearance and deiicient .in .the'display value it shouldhave.

The bags used may |be of any well knowntype such as Satchel bottom or.automatic which are so constructed that they have a rectangular bottomwhich assumes a naturally rectangular.

form when filled and shaped. The bags are iirst iilled in a well knownmanner from a filling tube so that the greater part of the bag above thebottom is nearly round las shown in dotted lines at the left oi Figs. 2and 31.y The bags, however, are fed to the machine in such a way as toinsure the sides of the rectangular bottom running par-y allel to theline of travel through the machine.

The bag can ,then be shaped to a nearly rectangular form in which thesides are ilat and parallel to the sides oi the rectangularibottom. y Anobject of' this invention is to-provide a process of and means forshaping of `iilled bags and at the same time compacting our and likematerial in bags which will insure elimination, to a 1 large extent, ofsome or all of thefoijegLoing'.

defects.

To accomplish this, I suspend the bag by the top and apply a vibratingpressure to the sides to squeeze out the air and compact the ilour.

The apparatus for doing this settling is fully described in thefollowing specication and is shown in the accompanying drawings in which-plates closed;

v(Cl. 259-112) z Fig. 6 is apartial vertical section of the machine onthe broken line 6--6 of Fig. 1;

Fig. 7 is a vertical section on the broken line 1-1 of Fig.- 1 showingthe elevator in lowered and raised positions; Y n

Fig. 8 is a partial enlarged section on the line 8f4 of Fig.'1; :A Fig.9 is a sectioncn the line` 9--9 of Fig. 8;

Fig. 10 is a developed view ofthe cams of Fig. 9;

10 Y Fig. 11 is a vertical section on the line ii-Ii of Fig, 1 showingthe vibrator arms in open position; m Fig. 12 is a similar View showingthe arms in' closed or operative position: l

Fig. 13 is an enlarged perspective on the line I3--I3 of Fig. 1 showinga one-.revolution cam and' its operative parts operable by an incomingbag of flour; i i

Fig. 14 is an enlarged vertical section on the line i4-I4 of Fig. 1;

Fig. 15 is a vertical section on the line |5|5 of Fig. .1 showing thevibrator arms of station 5 of the machine. the same being shown in openposition; A

Fig. 16 Iis an enlarged vertical sectionon the line' lB--IG .of F18. 1;p

Fig. 17 is an enlarged vertical section on the line I'l-I1 of Fig. 1: lI q Fig. 181s an enlarged partial vertical elevation on the line Isf-I8o1' Fig. 1 (and is a. fragment of Fig. 21) showing the gears for drivingthe gripper conveyor; (f Fig. 19 is a reduced section on the line I9-I9of Fig. 18; 35 Fig. 20 is a section on the line 2li oi' Fig. 18;

. Fim-21 is a slightly enlarged end elevation of the delivery end of themachine:

Fig. 23 is a particule# pariiym- 'secii'on'snowing the cam/-iaft and itsassociatedpartstakei* on the -ime urpmi;

Fig. 24k isn timingjdiagrain showing .thereintive posltlnnsv of various.paris associated with .the cam shaft;. l rj Fig. 25 is an enlargedpartial horizontalsecticn on the line 25-25 of Fig. 1 showing thegripper conveyor carriage;

Fig. 26 is a partial section on the line 26 of Fig. 25; I, A r

Fig. 27 is a partial side elevation,partly in section onthe broken line21-21 of Fig. 25;

Fig. 28 is a partial vertical elevation of the bag grippers showing thevgripper plates in process of gripping a Abag but not locked;

22 is ain-enlarged horizontal section on the

